DE1678021B2 - KEEPING LOCK WITH A DOUBLE-HARD KEY - Google Patents

Description

₃₅ grab des

Recesses

that εΠη

Bulges

and put together in precise order.

2 ^ tSAS

allow the possibility of the unauthorized production of a suitable duplicate ^{key s HS3}

_{Turn the key |} This allows a

It is half the task of a guard locking _{device of} the type mentioned at the beginning, if possible with the one

sässss »ta i«

the same recesses are provided, whereby in particular zg ^

special the so far different arched handles of the ^ egeMufe u g

Bulges of the swivel tumblers with each other ^ latch z »^ enable ^

if solved by the fact that as ^^^ T

Angle a

Reinforce the cut, through this cutout a

the locking stage is an attack of the key A tumbler lock 10 has a lock housing

bartes z. B. at an angle of about 65 ° to 11, a bolt 12 and a swivel tumbler

Line connecting the tumbler pivot point and bundle 13. Two threaded studs

Key pivot point allows, whereby a Klem- 14 are used to attach a not shown

men at the bolt step is largely avoided; 5 cover plate or to limit the swivel path

the reinforced key bit has the advantage that in the case of the swivel tumbler bundle 13 in the locking lock

a lock that had become stiff, broke,

risk is reduced. The swivel tumbler bundle 13 has a

Appropriately, the increments in wing tumbler 15, which in FIG. 5 h can be permuted separately in a known manner. The vote io is shown. On this wing tumbler 15 , the individual tumblers are layered on various other seven tumblers. B. in simple These are provided with the reference numerals 1 to 7. Way in that a swivel tumbler bundle The swivel tumbler bundle 13 is penetrated by a double-bit key provided for it in the sleeve 16 , on which the individual is brought to the position in which the Ent- 15 swivel tumblers against each other should be pivotable locking before itself; are in this position. The sleeve 16 in turn is rotatably mounted on a pin (tumbler rotation attached to all swivel tumblers at the same time. Point 17) which is now attached to the recesses for the locking lug posture lock 10 on the Zuden. This results in a bundle of pivots manufactured in this way - a common tumbler pivot point 17 for all tumblers can thus be carried out in one operation with the 20 tumblers of tumbler lock 10.
Provided recesses for the locking studs and approximately in the middle of the swivel tumblers at the same time on the associated double-bit key there is a recess 18 which can be matched in a known manner. in which the double-bit key 19 engages

To a particularly burglar-proof tumbler basic shape of this recess 18 is about one of

lock, it is useful if at least 25 lines 181, 182, 183 as well as 184, 185, 186

at least six swivel tumblers with an overlapping rectangle. The lines form 181,186

the same bulges for the different heights and 183, 184 roughly the long sides and the lines

Key levels are provided. The more swiveling 182 and 185 the narrow sides of this rectangle,

tumblers with sufficiently large increments are located approximately in the middle area of the long sides

the associated double-bit key provided 30 arcuate bulges 18 α and 18 fe, which

are, the more such a tumbler lock is for all pivot tumblers 1 to 7 according to the

protected against unauthorized opening. invention are congruent and their inventive

In the drawing, two exemplary embodiments according to the shape are described in greater detail later

It shows is shown. Those limited by lines 181 to 186

F i g. 1 the top view of a Schwenkzuhaltungs- 35 partial areas of the recess 18 offer the space bundle with a bolt in a lock housing, whose cover is removed for inserting the double-bit key 19. You know that in the embodiment, the arcuate by about 180 °. Bulge 18 ft is chosen slightly longer than that

F i g. 2 shows the cross section according to the line of arcuate bulge 18 a.

II-II in Fig. 1, 40 A locking stud 20 is attached to the bolt 12

F i g. 3 the bolt to which the bolt step was attached. This is in the closed position

a double-bit key engages shifted bolt 12 according to FIGS. 1

F i g. 4 on an enlarged scale the attack of and 2 approximately to the side of the swivel tumbler provided with a cutout double-bit bundle 13. In a known manner, the bolt key on the bolt corresponding to the one with a 45 lug 20 has a circle facing the swivel tumblers in FIG. 3 highlighted detail; Tooth 21, which with corresponding indentations

F i g. 5 a to 5 g show seven with congruent gene 22 on the pivot tumblers a classification

Recesses provided on different key of the swivel tumblers with other means than

Swivel tumblers coordinated with beard levels made difficult for the associated double-bit key
Tumbler lock together with a wing tumbler 50 on its side facing the locking lug 20

{Fig.5h) and on a greatly enlarged scale; are the swivel tumblers with a recess

Fig. 6 shows the emergence of the congruent 23 provided, which on each swivel tumbler has an arcuate bulge at the recesses in a slightly different position.To open the tumbler lock with seven different posture locks, the swivel tumbler key bit steps or the engagement seven are swiveled relative to each other That their separating key bit gradations come to lie congruently and exactly opposite the shaped bulges of a corresponding to the earth locking lugs 20 in the curved recesses 23. This finding trained swivel tumbler, align the swivel tumbler to open the tumbler

Fig. 7 a further exemplary embodiment for a posture lock 10 can be achieved in a known manner

Key turn of more than 180 ° when turning 60 twice by turning the double-bit key 19,

Attack of the double-bit key on the one with the key bit pointing downwards first

speaking recesses provided bolt; into the somewhat longer arched bulge 18 6

Fig. 8a to 8d show three with cover and then the upper key bit in the arched

Equal recesses provided on different fönnige bulge 18 α occurs in the further

Key bit levels matched pivot tumblers Se rotation of the double bit key 19 slides

(Fig.8a to 8c) of a tumbler lock according to key bit 19a now along the arcuate

F i g. 7 together with a correspondingly formed bulges 18 a, 18 b of the recess 18 and

Leaf tumbler OFig 8d). holds the tumblers in the desired position,

while at the same time as the one shown in FIGS. 3 and 4 lie or intersect; The same applies to the visible bolt step 19 b, the bolt corresponding to arcs of a circle, which the upward-facing beard-F i g. 1 shifts to the right in the open position, where steps are generated. So that now at congruent at the locking lugs 20 in the recesses 23 bulge arches the different beard steps can occur. 5 can intervene, as bulges 18 a,

In Fig. 2 can be seen even, that the key 18 b used the outermost envelope, which comprise the fulcrum 24 by a loading on the aforementioned. Lock housing 11 circular arcs. This fixed pin 25 is set over which the envelopes are at the intersections with the double-bit key can be inserted. In particular, the longitudinal sides of the rectangle 181,186 and 183,184 come to an end, the ones shown in FIG. 1 it can be seen that the key io. In the opposite way, F i g. 6 also fulcrum, which understand the common fulcrum of the as a representation, which the engagement pivot tumblers forming pin (tumbler rotation of the different beard levels of a double beard point 17) as well as the locking studs 20 are arranged on a through-circuit 19 in the connection line L according to the invention. The gen 18 a, 18 b shows. It can be seen that the bolt 12 is guided on 15 individual beard steps in the various parts of a bolt 27 with the aid of an elongated hole 26. The key fulcrum area of the bulges partially with but can also intervene due to the key axis of a different game. Expediently drilled double-bit keys are formed, wherefore the locking lug 20 sits in the recess and the lock housing at the point of the pin also has some play. This game of a beard hole is used as a storage for the key. 20 level occurs where the envelope curve of According to the invention, the seven of the circle belonging to this beard level deviates. Swivel tumblers 1 to 7 with congruent It can be clearly seen that the game is provided in particular with recesses 18. In Fig. 6 you can see that when entering E - z. B. at the transition from the right as the arcuate bulges 18 a, 18 b of the corner longitudinal side 181 in the envelope curve H - the verAausklungen 18 are formed according to the invention. The different beard steps in, for example, the one in FIG . approach.

As congruent bulges 18 a, 18 b of the In the embodiment is as the entry angle of

Seven swivel tumblers 1 to 7 for each 30 key bits 19 α in the curve H at an angle different steps is the envelope curve of the circular pieces described by the tumbler pivot point and key pivot point described at about 65 ° to the connecting line L between the key rotation of the beard steps , choosing the midpoints. In Fig. 6 are both this connecting line of these circles, the size of the jumps between the and a center line 1 to 7 through the beard steps corresponding, each at an angle 35 key bit, which lines with each other the previously a circular arc K relative to the pivot mentioned angle form, for the seven tumblers around the tumbler pivot point 17 - drawn from different swivel tumblers. This formed the pin - are arranged offset. In the line connecting the two pivot points F i g. 6 this envelope curve is denoted by H. The circles associated with each other in the direction of the locking studs 20 and 40 simultaneously form approximately the center of the respective relatives, mutually opposite beard steps 23, which, according to the different ones of the double-bit key, each have the same step of the double-bit key against each other as reference numerals as the corresponding Stop at the various swivel tumblers, but with a double line in each case. is brought. It should be pointed out again, Likewise on the circular arc K is the relative to the 45 that these connecting lines 1 '"to T" of FIG 24 in Fig. 6, the pivot tumblers 1 to 7 around the angle 0 with the numbers 1 'to 7'. To be swiveled against each other, a small circle 1 ″ is around the point Γ. It can be clearly seen that this angle α eir

speaking of a short beard step and a large 50 measure for the size of a step is Je nacl Circle 1 "according to the associated, opposite distance of the key pivot point 24 from the Zu overlying large beard step beaten. It is posture storage, the pin (tumbler pivot point mentions that the total length of two each other 17) results in, for example, one: opposite beard steps in this key beard, its opposite beard step posture lock 10 is the same 55 complement each other to the same length, with one

Around point 2 'in FIG. 6, two angles α of approximately 3 ° are again a certain size de Circles with the number 2 "struck, which are now increments.

In its radius the length of the beard steps 2 ent- To operate the tumbler lock 10 win

speak. In this way, the double-bit key 19 with approximately on the Ver fühnmgsbeispiel with seven pivot tumblers and 60 binding line L -aligned beard are set by seven increments provided rotation of the double-bit key around the lock 10 seven times two concentric 65 ° mentioned the individual swivel circles around a tumbler 1 to 7 offset by the angle α with their recesses 23 & located on a circular arc K point. It can be clearly seen that the circular arcs that lie downward in FIG - come, at the same time this line L also indicates the corresponding arch of bulge close together in the direction of the displacement of the bolt 12, Bi

ono non / '

9 10

a further rotation of 65 ° will result in the bolt having 12 differently assigned beard steps.

through the locking step of the double-bit key 19 in speaking recesses 23 you can be in

shifted this direction. Think of sliding in the following way:

individual beard steps on the congruent arches initially produced without recesses 23

shaped bulges 18 a, 18 b along and 5 tumblers become a tumbler bundle 13

hold the swivel tumblers in the first grouped together; now the for the respective

posed position. The locking of the tumbler tumbler lock provided, arbitrarily graded

Lock takes place in a known manner by a double-bit key 19 in the recesses 18 of the

Reverse rotation of the double-bit key, with swivel tumblers introduced. The

the processes described above are reversed from the swivel tumblers relative to one another through the

wrap. In order to make the recesses of different beard levels different

23 to move against each other again, is at the pivot. In a key position which is the

Wing tumbler 15 a pin 28 is provided, which corresponds to the later start of unlocking, the

the tumbler bundle 13 protrudes laterally and l <ei pivot tumblers pivoted against one another

Pivoting the wing tumbler 15 z. B. with the aid of 15 with a milling perpendicular to them

one that acts on this tumbler 15 and is provided with its recesses 23 at the same time

a stud bolt 14 supporting spring 29 or, which in this way to the required

by turning the double-bit key backwards.

All swivel tumblers with their outer contours It should also be mentioned that in particular the alignment brings about, so that the swivel tumblers that are congruent with respect to the 20 milling 32 on the opening flank of the locking step different 19 b, which are arranged to engage the double-bit key, are no longer recesses 23 Latch 12 only causes under about 65 °, to do this lie on top of each other. It should also be mentioned that this contributes to the fact that the bulges on the arch of the spring 29 are restricted from unauthorized opening of the tumbler envelope curve, in which a lock 10 prevents the pivoting 25 relatively good overlap of the one shown in FIG darzuhaltungen in this position under light pressure made circles 1 "to 7". This gives hold on. A projection 30 on the inner contour 15 α congruent curves, which together with the wing tumbler 15 prevents, in a known manner, individual beard steps from being pulled off the double-bit key in a precise alignment of the individual swivel other than the locked position of the swivel tumbler for opening the Tumbler lock gene by allowing the wing tumbler intended 10. Alignment of the pivot tumblers key step on the projection 30 when closing in the open position and keeping them aligned in engages. Due to the rotary movement of the double-bit this position takes place in the circuit according to the invention, over the projection 30 and the tumbler lock 10 as well as in the previous pin 28 all swivel tumblers inevitably in 35 known tumbler locks, with the inventive locking position pressed. appropriate difference that the recesses 18 of the

In the F i g. 3 and 4 you can see how the swivel tumblers are congruent and that

65 ° standing key bit with its locking step, the double bit key engages the bolt

19 b engages in a recess 31 on the bolt 12. 12 takes place at a larger angle than before,

There is a cutout on the opening flank 40 whereby a reinforced beard without large jamming

the locking step 19 b can be used with a nose 33 on the extension.

Taking 31 of the bolt 12 together to the extent that it is advantageous in the Zuder double-bit key according to the invention can be turned further, posture lock the economical production, since instead of until it engages the bolt, as if this from the numerous previously used, especially milling 32 were not provided . With these 45 more than six tumbler forms, only one later contact with the bolt 12 is achieved to achieve posture form is necessary. Furthermore, a smoother displacement of the bolt 12, the invention of the protection of the tumbler lock is increased with the rotary movement of the double-bit key against unauthorized opening, since the key is converted into the longitudinal movement of the bolt. hole from no differences at the tumbler-thereby milling cutout 32 of the double-bit 50 recesses 18 can be determined, whereby the locking device and the nose 33 of the bolt on each other, possibly conclusions on the gradation of the matching key would be possible, whereby jamming is even better avoided. According to the invention, as arcuate bulges 18 λ, 18 1

In FIG. 5, the envelope curve H used under the letters a, b, c, d, e, can be advantageously

/, g the seven swivel tumblers of the execution 55 hard way for tumbler of different sizes

example shown in the position in which locks are constructed and on the swivel tumbler

cover their recesses 23, d. i.e., in which gene transferred.

the displacement of the bolt 12 in the open position of the advantageous, it is for the durability of such

Tumbler lock according to Fig. 4 use tumbler lock if the swivel tumbler

can. It can be clearly seen once again in FIG. 5 that 60 made of corrosion-resistant and / or acid-resistant steel.

that the pivot tumblers 1 to 7 of the invention are available.

according to tumbler lock all congruent In Fig. 6 you can still see that the beard he

are with each other, except for the difference that 19 α in cross section at their on the envelopes E.

the recesses 23 on the narrow side sliding along various points a convex round uni

Find. These recesses 23 take into account that 65, the radius of curvature of which corresponds to the radius dei

at the different beard levels. These beard steps from the associated beard step at the key

can pernmtbaren rotation each described circle about ent in a known manner

be. The attachment of the each other in inter- face; if necessary, the radius of curvature!

11 12

the rounding also be a little smaller. As a result, the recess 23 z. B. the swivel tumbler the unfavorable engagement and sliding conditions at the 1 α also in place of the recess 23 of the

Envelope possible. Swivel tumbler 7 α and vice versa can come;

By developing the Zu- similarly it is with the recesses 23 of the posture lock with a double-bit key 5 swivel tumblers 2 α and 6 α and 3 α and 5 α; can this for a key turn by more than just the pivot tumbler 4 α retains due

ISO- are provided, whereby e.g. a multiple of the same length beard pieces of their associated

Malioe Sperrbeweeune or, apart from an unlocking of the double bit, the same position also with the

still ° actuation of a door latch carried out further rotation of the double-bit key.

can be ¹⁰ in F i g. 8 one can still see that one after his

In the Fi "8 a 8 b 8 c are shown to pan located at the respective Bartstufung tuned Einzuhaltuneenle'4a'und la exemplary. Cut 37 is provided in the cam track 34, in to the locking lugs 20 are different from the corresponding in which an additional Schwenkzuhaltungen 1, 4 and 7 of FIG. 5 in. the displacement movement of the bolt 12 according to respectively a curved, to its Mehrtourigkeit engages pan _l5. Under Mehrtoungkeit direction to the recess 23 for the transom is understood to mean that a curved path 34 beyond 180 °, is possible in going key turn. Correspondingly softer, the "lugs 20" mean a turn by up to 180 "single-turn swiveling of the pivot tumblers by the unit, since only one bolt movement is guided through the previously opposite beard steps 20. It can be seen that the incisions 37 fn the other ere bow-shaped bulge engages in each case from a central swivel tumbler in the exemplary embodiment by turning a key so far away to the other side beyond 180 = beyond line M; lie accordingly as the recesses 23; this is shown in Fig. 7 that the bolt 12 is made to engage. that the opposing Barteiner of the first locking step 19 b opposite 35 steps complement each other to the same length and the second locking step 19 c of the double-bit key when engaging in their previously opposite turn by more than 180 ° several arc-shaped bulges a corresponding neighboring recesses having. cause pivoting movement.

In the example you can see. that this could instead of the short additional bolt step 19 c

to the second bolt step 19 c shorter than the 30 at this point one of the bolt step 19 b is also

RieBdsmfel? 6 fet and no recess 32 possessing speaking step should be provided, so that the

AuSXi can be seen that this locking step 19 c double-bit key for the purpose of two locking barges

engages in a recess 35. The one has a double bevel and the latch 12

Dorodban key compared to the dashed line one of the first recess 31 approximately the same, but

? esfeffn SteilunT bl which it is in the execution area of this additional control level

beisn el under 65 = engages in recess 31 was adapted to have offset recess,

rotated by wehere 180-. As a result, the bolt has opposite the previously known tumbler locks

Then a shift by the distance α is achieved with a double-bit key, in which the individual

In addition, the swivel tumblers have the same length as the beard steps.

1 α hk 7 a with the exception of the swivel tumbler 4 a 40, this is the protection of the lock against un-

pivoted "the largest pivoting authorized actuation promoting multiple locking

naSTdSd the swivel tumblers 1 α and la availabilty just as inaccessible as the recovery

Sen since their A ^^ taking 23 Lf a key of a door latch with the help of this guard locking

. r '.1.: _ "«; .- ♦ κ «·; wpirher a lansen locked key used.

Bar £ SckdrTküyzes B ^^ ück "faces. 45 In Fig. 8b a hill addition 38 is for a

In the execution example it is now provided that the tumbler lock with a turned control

Removable double-bit key shown when the double-bit key is turned. These

about dfe ^ fi ?? mU solid lines represent wing tumbler 38 has ir. a manner known per se

estelS position tttnaus a, widened movement of the one effective against their pivoting

Asked bteuung mnaus _Beweg ung 50 could pose a spring 29 for downward printing the supply

S iL ^ i ^ Sd inrfne ^ xÄter abstention package with the help of pen 28 at 180 =

X ^ dSfa £ ta ^ execution example rotated, double-bit key in opening position in

JSm ToI ί the bolt 12 through which the keyhole is released, and the

? äebetewbewegung ^ which over sdne inner curve 39 this wing locking 38 is so large,

SS toaul goes, in per se known ₅₅ that the associated beard with its two beard teds

e üSr a change 36 actuated: can perform a rotation greater than 180 °1.

»» _Fa iie also through a One recognizes in the exemplary embodiment how the longer one

i ^ SdM, which the beard part 40 is rotated by more than 180 ° and thereby

with sdner rotation into the in into the lower one, which is greatly expanded for this purpose

ÄTtiätigrEs sd mentioned, 60 arc 39 a of the inner curve 39 engages in known

ßL lS ™ nS? In a more modern way, the tumbler guard still has a

vetcSebinf? Br df wSSelbetätignng a jump 41, which has the same task as the

shift door lines _{drawn in} it. ₃ h recognizable projection 30

The most advantageous position of the double-bit key is due to the slightly modified design

gesteute »« uyng u «, v) ~ _{hen is 6s} bolt 12 and the pivot tumblers 1 α to Ta

⁸ Ser ^ Hnien ρίΓβπ Indicates that as well as the tumbler 38 you get a tumbler

JTees swiveling the swivel posture lock, which compared to known locking

K: * Because the rotation over 180 ° has the essential advantage

that it allows a rotation of the double bit key beyond 180 °, whereby a Repeated locking or additional actuation increasing the protection desired by the lock a trap is made possible. These additional measures can thereby bring about this advantage the according to the invention Znnahmschloß mk congruent recesses or arcuate Bulges on semen pivot tumblers is provided

For this purpose 2 sheets of drawings

Claims (13)

1 678 02i claims: 1. Tumbler lock with several swivel tumblers stored in a common tumbler pivot point and a double-bit key which engages with different beard levels in a recess of each swivel tumbler, these recesses each having an approximately rectangular shape with approximately arcuate, opposing bulges have on their long sides and the mutually opposite beard steps of the double-bit key, which act approximately simultaneously on one of the curved bulges of a swivel tumbler as the key is turned, always add up to the same length, characterized in that the curved bulges (18 o, 18 b) congruent recesses (18) of all or almost all of the swivel tumblers (1 to 7) the envelope curve (H) is provided by the circles described when turning the key of the beard steps, the centers of these circles of G The size of the jumps between the beard steps are respectively arranged offset by an angle (a) on an arc of a circle (K) relative to the pivot tumbler about the tumbler pivot point (17). 2. tumbler lock according to claim 1, characterized in that the size of an increment corresponds to a pivoting of the associated swivel tumblers against each other by about 3 ° around the tumbler pivot point (17). 3. tumbler lock according to claim 2, characterized in that the gripped by mutually opposite beard steps of the double-bit key arc-shaped bulges (18 a, 18 5) of the congruent recesses (18) have such a length that an engagement of the key bit (19 a) to the Bulges in a beard position below about 50 to 75 ° to the connecting line (L) between tumbler pivot point (17) and key pivot point (24) takes place, and that to keep the pivot tumblers (1 to 7) aligned, a key turn is provided by about a further angular amount for unlocking , through which the entire turn of the key reaches about 180 °. 4. tumbler lock according to one of claims 1 to 3, characterized in that the Gripping the key bit (19 a) with a bit position below about 65 ° to the connecting line (L) between tumbler pivot point (17) and key pivot point (24) and to keep it aligned the swivel tumblers (1 to 7) for unlocking in the open position another Turn the key by about 65 °. 5. tumbler lock according to one of claims 1 to 4, characterized in that the key bit (19 α) on the opening flank of its locking step (19 b) has a recess (32) matching a nose (33) on the locking bar (12). 6. tumbler lock according to one of claims 1 to 5, in which the beard steps in cross section on their narrow side sliding along the bulges (18 a, 186) have a convex curvature, characterized in that the radius of curvature of each curvature is not greater than the radius of the the corresponding beard step is described when turning the key 7. tumbler lock according to one of claims 1 to 6, characterized in that the Steps can be permuted in a manner known per se. 8. tumbler lock according to one of claims 1 to 7, characterized in that at least six pivot tumblers with congruent bulges (18 a, 18 b) are provided for each different key levels. 9. tumbler lock according to one of claims 1. 2. 5 to 8, in which a key rotation beyond 18 (P is provided, characterized in that the pivot tumblers (1 α to Id) each have an arcuate, pivoting direction to the recess ( 23) for the locking stud (20) have subsequent cam track (34) in which the locking stud (20) engages when the pivot tumblers are pivoted further by the engagement of the previously opposite beard step in the other arcuate bulge of their swivel tumbler by turning the key beyond 180 ° , and that its bolt (12) for engaging a second bolt step (19 c) of the key bit (19 α) opposite to the first bolt step (19 δ) has recesses (31 and 35) adjacent to one another when rotated by more than 180 °. 10. tumbler lock according to claim 9, characterized in that the bolt (12) through an additional sliding movement, which goes beyond its unlocked position, in a door latch is operated in a known manner via a change (36). 11. tumbler lock according to one of claims 9 or 10, characterized in that an incision (37) on the curved path that is matched to the respective beard gradation according to its position (34) is provided on the side facing away from the recess (23), in which the locking lug (20) with an additional sliding movement of the bolt (12) according to its multi-speed intervenes. 12. tumbler lock according to one of claims 9 to 11, characterized in that the double-bit key has a double-bolt step for the purpose of multiple lockability and the bolt (12) one of the first recess (31) approximately the same as the engagement area of the second Has beard part adapted offset recess. 13. tumbler lock according to one of claims 9 to 12 with one in the rotated position Removable double-bit key, characterized in that a wing tumbler (38) in In a known manner, a tumbler spring (29 a) that is effective against its pivoting for pressing down the tumbler package with the double-bit key turned 180 ° in Open position in which the keyhole is exposed is given, and the inner curve (39) of the wing tumbler (38) is so large that the accompanying key bit with its two beard parts (e.g. 40) can rotate more than 180 °. The invention relates to a tumbler lock with several tumblers in a common tumbler pivot mounted swivel tumblers and a double-bit key, which has different bit levels engages in a recess of each swivel tumbler, these recesses each about one Staddgc. on the size of the imported Double-bit coordinated shape with roughly curved shaped, opposite bulges “Have s on their long sides and with themselves te opposing, in the course of Turn the key approximately at the same time on one of the curved bulges of a swivel locking attacking beard steps of the double-beard Always add key to the same length. Such tumbler locks are already came. There are at the individual swivel tumblers because of the different lengths of the His beard levels and the resulting ones various shifting movements of the swivel tumblers differ when turning the key borrowed curved lines tailored to the individual levels Loose bulges on the recesses conducive. When assembling such a Tumbler lock must be paid attention to the envelope curve provided by the described in the rotation of the beard steps, with the center ^{points ώε5} ^ * _t the size of the jumps between the beard stuien according to an angle on an arc of a circle relative to the swivel tumbler around the Guard locking pivot point are arranged offset. For example, only the recess of a wing tumbler known per se, which prevents pulling the double-bit key in an undesired position and, in a known manner, promotes the other swivel tumblers in their closed position during the locking process, can have its own shape corresponding to its task. The remaining swivel tumblers have cover gaps, as their arched outpuc ™ ^u "| are formed by the aforementioned envelope curve. ·" * "& Borrowed the arrangement of the recesses for the engagement of the locking cleat in the emzeta tumblers when opening the ^Ζ » ™ ¹¹ ™ ^ '^ ° are ver in the individual SchwenkzuhaItungen retired and depend on the individual ^^^^^ Stufenspmngen However, this may not like the enkurven ™ _a5 Schwenkzuhaltungen be from .Schlüsselloch so that conclusions about the order of £ bit stages from the outside here are. _r »» · " It is useful when the big one Jump of a pivot deτ ^ Swivel tumblers against each other ^ a 3 the guard locking pivot point corresponds to "a" larger increments are also available. ^ch ^ ^o £ ~